23.1 PREWHERE is disabled for non-identical Merge tables

[SaltTan]

I am very upset by your decision to disable PREWHERE for Merge tables in case data types do not match for some of the columns in the underlying tables (#44716).

Here is my use-case that doesn't work anymore:

create table default.t1 (key Int32, value Int32) engine=MergeTree order by key;
create table default.t2 (key Int32, value Int64) engine=MergeTree order by key;
create table default.t (key Int32, value Int32) engine=Merge(default,'^t.$');

insert into t1 values (1,1);
insert into t2 values (2,2);

select * from t prewhere key=1;

Code: 182. DB::Exception: Cannot use PREWHERE with table t, probably some columns don't have same type or an underlying table doesn't support PREWHERE. (ILLEGAL_PREWHERE) (version 23.1.3.5 (official build))

As you can see the data type for the column participating in the filter is the same in all tables, but PREWHERE is disabled anyway.
I run ClickHouse for many years and some of my tables are so old they are created with the old syntax. I use Merge tables to avoid changing old tables and migrating data. I'm very upset that I can't continue doing it.